$NetBSD: patch-aa,v 1.2 2009/09/15 11:43:02 drochner Exp $

--- src/options.cpp.orig	2009-07-27 03:02:29.000000000 +0200
+++ src/options.cpp
@@ -21,6 +21,7 @@ Permission is granted to anyone to use t
 #include "options.h"
 #include "gen.h"
 
+#include <unistd.h>
 
 #include<iostream>
 #include<fstream>
